The innermost lay of the sun is known as “the core.” The core of the sun helps to begin the generation of heat and light, which feeds the Earth’s life. The inner most portion of the sun has the highest temperature and the most pressure. Based upon the category of the sun in the stellar classification, it is made up of hydrogen and generates energy from nuclear fusion. Nuclear fusion reaction is “when two or smaller light nuclei combine to form a larger nucleus,” (Young, 2012). The hydrogen atoms perform nuclear fusio...
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...11 May 2014, from http://solarscience.msfc.nasa.gov/interior.shtml
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